Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1997-10-03
1999-09-07
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
701213, G01S 502
Patent
active
059493720
ABSTRACT:
The present invention discloses the apparatus and the methods for calibrating a Narrow Band receiver for the group delay code phase errors. The group delay code phase errors are caused by group delay variations in the satellite signals being transmitted by a Narrow Band satellite Transmitter. A Calibration generator circuit generates a calibration signal that is substantially similar to the satellite signal but is free from the group delay variations. The calibration signal is used by the Narrow Band satellite Receiver to measure and eliminate the code phase group delay errors.
REFERENCES:
patent: 4463357 (1984-07-01), MacDoran
patent: 4809005 (1989-02-01), Counselman, III
patent: 5041833 (1991-08-01), Weinberg
patent: 5486834 (1996-01-01), Lennen
patent: 5515057 (1996-05-01), Lennen et al.
patent: 5526291 (1996-06-01), Lennen
patent: 5841396 (1998-11-01), Krasner
Hellner Mark
Tankhilevich Boris G.
Trimble Navigation Limited
LandOfFree
Signal injection for calibration of pseudo-range errors in satel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal injection for calibration of pseudo-range errors in satel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal injection for calibration of pseudo-range errors in satel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1808371